Receptacle and method of making and closing the same



Feb. 9, 1932.

J. o. SEWER-r RECEPTACLE AND METHOD OF MAKING AND CLOSNG THE SAME Filed July l2, 1928 INVENTOR Patented Feb. 9, 1932 UNITED STATES PATENT oFFlcE JOHN O. SEIFERT, 0F AUBURNDALE-FLUSHING, NEW YORK, ASSIG-NOR, BY MESNE AS- SIGNMENTS, TO AMERICAN SEALCONE CORPORATION, OF NEWT YORK, N. Y., A COR- PORATION OF NEW YORK RECEPTAGLE AND METHOD OF MAKING .AND CLOSING THE SAME Application led July 12,

This invention relates to receptacles of truncated conical form made of paper parat# fine and adapted to carry liquid, such as'mllk, wherein the receptacle body is made from a blank formed to tubular shaperand secured at the longitudinal marginal portions and a closure securefd in the larger end of the body to constitute the bottom, the throat of the receptacle being at the smaller end and adapted to be closed by pressing together the opposite wall portions of the receptacle at the open end, and then securing and sealing the closed receptacle end by engaging a metallic strip over and clampingthe same to the collapsed receptacle end.

It is the primary object of the invention to `provide an improved lconstructed and arranged receptacle of this character and to the methodfof making the same.

A further object of the invention relates .to improved means'for and method of securing the blank at the longitudinal marginal portions to form the' receptacle body and arrange the same with a liquid tight seal.

Another object of the invention relates to an improved method of collapsingthe open end of the receptacle/to close the same whereby the stresses and strains of the callapsing force which tend to distort the wall of the receptacle body will serve to exert a force on the portions of the receptacle at which it is secured at the longitudinal marginal portions to maintain the connected portions in firm and intimate Contact.4

Still another object of the invention relates to an improved died out blank for making the body of a receptacle of truncated. conical form.`

In the drawings accompanying and forming a part of this application I have illustrated an embodiment of my improved receptacle, wherein Figure 1 is a plan v iew of my improved died out blank from which the receptacle body is formed. Y t

Figure 2' is an end elevation of the blank looking in a direction from the bottom of opposite s longitudinal Figure 3 is a perspective view showing the 1928. Serial No. 292,109.

the means and method of sealing said interf'- Y locked hooked edges.

Figure 5 is a sectional view, on an en'- larged scale, of a portion of the receptacle to show the manner of securing a langed disk bottom therein. I

Figure 6 is a side elevation of the formed I receptacle; and

Figure 7 is an elevational view of the upper end of the receptacle, partly broken A- 'away, to show the manner of collapsing the receptacle to close the open end and the means Y for securing said end and sealing the same.

In carrying out the embodiment of the inin collapsed condition vention illustrated there is provided a blank as shown in Figure 1 cut out from a sheet or -a'web by a suitable die, said blank being substantially of quadrilateral form, having the one end to constitute the base or bottom of the receptacle or container, arc of a circle, as shown at 8, whose center lies in a line extending vertically to said base end of the blank and substantially centrally between the opposite side edges 9, 10 of the blank to converge at the same angle toward each othertoward the top edge of the blank. The top or upper edge of the blank'is a chord of the angle formed and intercepted bythe sides 9, 10 and embodies four straight line parts 11, 12 arranged at an obtuseangle to each other, the two intermediate parts 11: being of equal length and each of said parts? arranged and dimensioned to constitute a side of the upper edge of the receptacle to greater angle than said intermediate parts I and berit` or folded in opposite directions, as Figure 1 and showing the blank as arranged l with hooks at the so `edges.

shown at 13 and 14, to constitute hook portions of a lock seam for securing the blank at the longitudinal marginal portions.

` To form the receptacle body the blank arranged 'in an is wrapped or :folded around asmandrfel or horn and the hook portions 13, 14 formed at the longitudinal marginal -portions and extending 1n o posite directions are inter'-A locked and the lank secured with said hook portionsv in said condition. The hooks may e arranged onthe blank previous to the wrappingvof the same around 'the mandrel and are of a length equal to the length of` the angle portions 12 of the blank. The interlocked hook portions of the blank are adhesively secured together, as by applying an adhesive to the 'outer surface of the outer hook portion and the adjacent outer surfacel of the receptacle blank, as shown by stipp'ling at.16 in Figure 3, and pressure applied thereto to force the hook portions and the surfaces with the 'adhesive applied theretoy into rm and intimate contact. The preferredmeth'od of securing the hook portions interlocked and the sealing of the receptacle-is by adhesively applying a strip 17 over the juncture of the seam formed by the interlocked hook portions and the adjacent receptacle portion under pressure on the m'andrelvjwitho'ut the applying of an adhesive to the hook portions of the receptacle blank, although if desired adhesive may also be applied to said hook portions thus further assuring the securing and sealing of the same. f

A closure is then applied to the large end of the receptacle body to constitute the bottom, this cl sure comprising a flanged disk 18 of relativel stiff material enga ed in the end of the receptacle body with the ange extending outward in contiguous relation to the end portion Aof the receptacle body and seatedv against an annular shoulder extending outwardly from the receptacle body, as at 19, which shoulder may be formed simultaneously with the engaging of, the closure disk in the receptacle' end. The contiguous portions of the disk flange and receptacle body are then folded inwardly with the material of the receptacle folded over the edge of the disk flange, as at 20, and the disk flange folded over theedge of the receptacle end, as at 21, and said interlocked portions folded into firm and intimate contact by the calendering action of rollers, this operation being 'performed by what is commonly termed spinning.

To facilitate the interfolding or ,interlocking of the'receptacle with the ange of the receptacle disk 18 -and obviate too great a number of plies of material at the fold'the v corner portions of the'l blank at the juncture of the sides with the baseare cut away, as at l 22,to aawidth equal to thehooks and of a receptacle blank length equal tothe end portion 20 of the disk flange.

The. receptaclel so`formed `is then subjected to a parain'e bath, which not only renders the material of the receptacle impervious to liq- 66, uid and moisture, but also entering and lillof arcuate shape and the Ifolded over the edge of the yginal portion of the interlocked hook portions, with the fold at one end of the collapsed receptacle wall, as shown at 23 in Figure 7.4

When the open end of the receptacle is lcollapsed there is eiected a spiral formation of the sealing strip 17 and a distortion of the receptacle wall which -sets up stresses and strains which exert a force or forces upon the seam formed by the interlocked hooks and the sealing strip in a direction toward each other land maintaining the'same in firm and intimate contact, and thus obviating the possibility of breaking or unseating any paraine which 'may have permeated into the joints of the seam and prevent any possibility of leakage. The upper end of the receptacle by the arrangement of the upper edge of the blank as described will be fslightly inclined downward from the opposite sides at the longitudinal ends of the receptacle, and when the open end of the receptacle is collapsed it also spreads causing the middle portion to be l s ightly extended and drawing downward the lateral or side portions with the result that the top collapsededge ofthe receptacle will.

be in aplane substantially horizontal to the axis of the receptacle and thus facilitating the engaging and securing of a sealing member to the collapsed receptacle end. ,j

The receptacle end collapsed as described is secured and sealed in collapsed condition by a metallic member of V shape in cross section engaged over the collapsed receptacle end and clamped thereto, as shown at 24 in Figure 7.

Having thus ,described my invention I claim: f

1. In a truncated conical rece tacle, a blank having the opposite side e ges converging from one end to the o site end and arranged as reversely forme ooks adapted tobe interengaged to form a receptacle body,

the edge between the diverging sides to con-v stitute the bottom end of the receptacle being opposite edge to constitute theto and open of the receptacle adaptedto e collapsed o close the same a chord of the angle formed and intercepte bythe sides embodyin four straight line portions arranged at an o tuse angle to each other, the twointermediate portions being of equal length and each of said portions arranged and dimensioned'to constitute one side of the upper end of the receptacle when mil it is collapsed, and the end portions being of equal lengthl and arranged at a greater'angle than said intermediate portions to constitute thehook portions of the lock; seam for secur- 5 ing the blank at the longitudinal marginal portions, and a closure disk secured in the larger end.

2. As an article of manufacture, a blank for forminga tubulartruncated receptacle body, comprising a died-out blank of quadrilateral form having one end to constitute the bottom end of a receptacle 'arranged of arcuate form with the opposite sides converging from said arcuate end., and the opposite end to constitute the upperI open end of the rei ceptacle adapted to be collapsed to close the same being a chord of the angle formed.v and intercepted by the sides andconsisting of straight line parts arranged at an obtuse an- 2 gle to each other, the intermediate parts bemg arranged to constitute the opposite sides of the upper edge of the receptacle and extend in the same straight plane when said end of the receptacle is collapsed, and the end parts to constitute hook portionsto be interlocked to secure the blank at the longitudinal marginal portions and arranged to extend in the plane of the intermediate parts when the receptacle is collapsed. y

Signed at the city of New York, in the county of New York and State of New York,

this slxth day of July, 1928.

p JOHN o.` sEmERT. 

